Annual Report 2011 (5.07 MB, PDF-File) - Oerlikon

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Oerlikon Drive Systems
CTL drive: as powerful as the biggest 40-ton truck
A core competency of Oerlikon Drive Systems is development
of tailored drive solutions with exceptional performance characteristics.
With a long history rich with experience in mobile
off-highway machinery, Oerlikon Drive Systems focused one of
their R&D projects on developing a higher level of technology
and performance for compact tracked loaders (CTLs). Although
not very large, CTLs are subject to extreme loads which place
heavy demands on the drive train and typically operate at
8 – 12-hour intervals in extremely poor ground surface conditions:
mud, gravel and steep grades. Transmitted torque
reaches 3 800 Nm (Newton meters), which equals the torque of
the largest 40-ton truck (3 500 Nm) made today.
Unlike standard compact loaders, these vehicles move by
means of treads rather than wheels, which increases traction
control, mobility and maneuverability. Once propelled by
hydraulic direct-driven engines, these loaders had speed and
Research and development
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torque limitations and were prone to overheating. The Oerlikon
Drive Systems integrated solution eliminates these issues with
a very compact two-speed system that is offered in two configurations.
Unveiled in March 2011, the two models have been
extremely well received in the CTL marketplace and are already
in high-volume production with a major global producer of
compact tracked loaders.
Other applications for this drive solution include road rollers,
mini excavators, and similar equipment requiring demanding
performance.